Machine eob hulling and scouring grain



2 Sheets-'Sheet 1.

0. P. STEVENS- Grain Hulwler and Scourer.

Patented July 1, 1856..

5oOouoo .c

. v 2 Sheets-Sheet 2. 0. P. STEVENS.

Grain Huller. and Scourer.

Patented July 1, H 356;

' PATENT OFFICE.

F 1 I OLIVER P. STEVENS, E CLEVELAND, OHIO.

MACHINE FOR HULLING AND SCOURING- GRAIN, SEED, 8w,

' Specification forming part of Letters Patent No. 15,269, dated July 1, 1856; Reissued March 28,

To all whom it may concern edges of fan-case heads a, a, to admit air 55 Be it known that I, OLIVER P. STEVENS, to the fan-wheel. of Cleveland, in the county of Cuyahoga d, d, represent semi-circular sheet-iron and State of Ohio, have invented a new and plates, with semi-circular openings in the 5 Improved Mode of Constructing Hulling upper edges (Fig. 3) for admitting air to or Scouring Machines for Grain or Seeds; the fanwheel asindicated by the red ar- 60 and I do hereby declare that the following rows. Said plates are riveted to the castis a full, clear, and exact description of the iron heads, A, A, at their peripheries, and construction and operation Of the same, refare connected with these heads by ties, rep- 7 10 erence being had to the annexed drawings, resented by dotted lines (Fig. 3).

making a part of this specification, in C, represents the fan-shaft, which is sup- 65 whichported in boxes cast on the heads A, A, and

Figure 1, is a perspective view, Fig. 2, has graduated pulleys b, b, on each end. is a perspective view of the sides opposite t, 25, represent caps, with cups to receive those shown in Fig. 1. Fig. 3, is a plan the tubes 79, 7), (Fig. 5).

View of the lower section. Fig. l, is a plan 6, e, represent wheels on the shaft C, with 70 view of the upper section inverted. Fig. 5, flanges a, on both sides of the rims. Those is a plan view of the middle section, taken on the outside are to prevent hulls, dust, at the horizontal line 50 m, Fig. 2. Fig. 6, &c., from passing from their peripheries tois a vertical section in the direction of the Ward the shaft C. Those on the inside supline 00 00. Fig. 7, is an edge View of a dep rt the Wooden fans f, f, f, f, which are 75 tached section of the lining to the fan-case, pported in the middle by the spider b. which is studded with teeth, Fi 8, is a The wheels and spider are fastened to the plan View of two detached sections of the shaft C, in the usual manner, and to the same. Fig. 9, is an end view of three secfans f, f, f, f, with screws or bolts.

tions, studded with teeth. Fig. 10', is a 9, (Fig. 10) represents pieces of perfo- 80 detached section of two perforated metallic rated metal fastened to the fans 7, f, f, 1, plates, for arming the fan-wheel. Fig. 15 with screws. The fan-case a, c, is lined with is an edge view of three steel teeth, set in cast-iron strips, or other material set with cast iron. Fig. 11, is a side view of a steel e h a S en in Figs. 7, 8, 9,11, 12, 13, 14,

tooth, set in cast-iron. Fig. 12, is an edge and 15. 85 view of two thin teeth, in the for of a i, 2', represent metallic guides, or deflectors, staple, set in leather." Fig. 13, is an edge formed at right angles, (Figs. 4 and 6). View of the same, set in sheet-iron, and fas- The lower ends are screwed to the board h,

, tened with a rivet. Fig. 14, is a. plan view and their upper ends are screwed to the rod i of the same, fastened in place, with strips J, whi h h s a n ch in he pp r ge to of sheet or hoop-iron, which pass over the receive the lever D, which has a rod E,- athorizontal part, and are fastened with nails tached, for moving the guides i, c, as indior screws, driven into the spaces between cated by the red lines, (Fig. 4c). The board them; one nail or screw, is put through h, is lined or covered on the under side with each staple. Figs. 15, 11, 12, 13, and 14, sheet-iron, which projects under the rod J, 95 represent, different modes, for lining, and, to the chimney space. There are long holes providing the fan-case with thin metallic in this sheet-iron lining f IT the screws that t th. hold the guides 2', i, to the rod J, so that they 4 A, A, Figs. 1, 2, and 3, represent, castcan be moved.

l iron heads, to the lower section, of the fan- F, represents a valve,(Figs. 2 and 6) 0 case, with flanges, to support the cylindrical supported at the upper end by a pin, or part 0 which is made of wood, and is fashinge joint. tened. to the heads with screws or bolts. I-I, represents a lever, connected to the maa, a, represent the cast-iron heads to the chine at the lower end by a link e and to upper section of the fan-case, with flanges the valve F by the latch I. There is a plate to support the wood casing 0, (Fig. 4) and screwed on to the outside of the machlne for is fastened to it with screws or bolts. There the latch I, to catch upon, (as seen in F g.

are semi-circular openings in the upper 2) to hold the valve F open, or shut,

K, represents a board to support the legs k, 7:. The opposite side of the machine is made in the same manner, the legs have feet, with holes in them, through which bolts pass to fasten the machine to the floor.

L, L, represent stiffening pieces to which the hinges m, m, are fastened.

M, represents a hopper-shaped spout, with a slide valve Z, in it. There is also a swing valve which is opened by the pressure of the grain, to prevent the escape of air.

N, represents the discharge spout, which has a swing valve that is opened by the pressure of the grain.

0, represents the chimney, which should be lined with sheet-iron, to a point a little above, where the grain strikes.

P, P, represent supports, to the bridge trees Q, Q, which supports the shaft R, and are screwed, to the chimney O, at their opposite ends. The said supports, extend down a little below the center of the fancase, and are fastened to the cast-iron heads R, represents an auxiliary shaft, with graduated pulleys S, S, on each end, and three graduated pulleys s, s, .s', between its bearings.

T, T, represent sheet-iron casings, which have pieces of sheet-iron, riveted to their lower edges, on the inside, forming grooves X, X, (Fig. 4) to receive the upper edges of the cast-iron heads A, A, for inclosing the chambers B, B. The tubes 79, 29, (Fig. 5) for tallow and oil, are supported near their lower ends by iron straps riveted, to the inside of the sheet-iron casings T, T.

n, 41,, represent covers to the tubes 39, p.

m, m, represent covers to short tubes in the caps 0, 0, (Fig. 1).

U, represents the wood casings, forming the air passages or chambers B, B.

V, represents a valve (Figs. 4 and 6) with cords, and weights 1", 1", attached. The right hand one, opens the valve V, which is held in position, by winding the cords around, the pins or screws u, to, (Fig. 1), 'v, '0, represent hooks and eye-bolts. The black arrows, Figs. 2, 4: 5 and 6, indicate the passage of the grain, and also the direction in which, the fan-wheel turns.

W, W, represent the belts, by which, the fan-wheel, is driven. The red arrows (Figs. 5 and 6) indicate the direction, of the current of air, to the fan-wheel, which should have a space, between it, and the teeth in the fan-case, of, from, 9.; to g of an inch, for hulling, and scouring grain. The holes, along the edges of the fans, f, f, f, f, should be from 9;, to g, of an inch for wheat, and from, 2 to g, of an inch, for corn, or else, put on, with the smallest ends, of the holes forward.

The length of the machine, should be, from, three to, four diameters, of the fanwheel; and there should be as many fans in the wheel, as it is inches in diameter.

In the construction of this machine, I do not intend, to confine myself, to any particular size, as to the whole, or any of its parts, nor to any particular kinds, of material used. 7

The operation of this machine, is as follows. The auxiliary shaft, R, and, pulleys S, s, are put in motion, by a belt, around one of the pulleys s, s, s, which gives motion to the fan-wheel C, e, f, g, by the belts W, W. The upper ends of the guides 71, 2', are moved toward the valve F, by pushing in the rod E. The grain, is put into the hopper shaped spout, at M, (Fig. 2) draw the valve Z, and the grain will slide, into the machine. The current of air, put in motion, by the fan-wheel, moves it along, among the teeth, in the direction, indicated, by the black arrows, (Fig. 6), the sheet of grain, is continually divided, to the right and left, by the teeth, causing it, to act, upon itself, as well, as against the teeth, causing it to fly, so as to come in collision, with the perforated fans, when some of it, passes through the holes, and is thrown, by centrifugal force, among, the teeth, until, it is carried over the fan-wheel, and is thrown, between the guides, i, z, and, against, the vertical face, of the chimney 0, from thence, it rebounds, and falls down, through, the constant stream, of grain following after, it now gets more action, of grain, against grain, when it goes another round, of the fan-case, and is caused, to advance, more, or, less, at each revolution, of the fan-wheel, according to the position of the guides, i, 2', until, it has passed, to the end of the fanwheel, when, it is discharged, over the upper edge, of the fan-case head, a, and out, through the spout, N, as indicated, by the black arrows, in Figs. 2, L, 5 and 6, after the hulls, dust, &c., have been, separated from it, by the constant, current of air passing up through, the chimney O. Said current of air, can be regulated by the valve V, in the vertical trunk B.

The velocity at the periphery, of the fanwheel, should be from, 34, to 40 feet per second, for hulling, and scouring wheat. Fc r hulling cotton-seed, and making hominy, it requires about fifty feet per second.

What I claim as my invention, and desire to secure by Letters Patent is,

1. I claim the perforated fans f, g, in combination with teeth, set in the fan-case c, as described, for the purposes set forth.

2. I claim the arrangement of the upper section of the fan-case c, in its relation, to the chimney O, in combination with the fans f, g, and guides z, z, in the manner described, for the purposes specified.

3. I claim the adjustable guides, or deflectors z, 2', combined as described and operating in the manner and for the purpose 5. I claim the valve F, operated the hereinbefore described. manner described, in combination'with the 4. I claim the air passages, or chambers chimney O, for the purpose specified. B, B, arranged in each end, and on the top OLIVER P. STEVENS.

5 of the fan-case, in connection with the ver- Witnesses:

tical trunk B, as herein described and for WELLS PORTER, the purpose specified. HANNAH PORTER.

[FIRST PRINTED 1912.] 

